全新安装 PHPUnit 3.7.7 和 Symfony2.1.2。当我尝试在作为演示预安装的 Acme 包上运行 PHPUnit 时，我收到以下错误：
$ phpunit -c app/
PHPUnit 3.7.7 by Sebastian Bergmann.
Configuration read from /home/kevin/www/diva/app/phpunit.xml.dist
E
Time: 4 seconds, Memory: 7.25Mb
There was 1 error:
1) Acme\DemoBundle\Tests\Controller\DemoControllerTest::testIndex
Symfony\Component\Config\Definition\Exception\InvalidConfigurationException: Unrecognized options "enable" under "framework.profiler"
/home/kevin/www/diva/vendor/symfony/symfony/src/Symfony/Component/Config/Definition/ArrayNode.php:278
/home/kevin/www/diva/vendor/symfony/symfony/src/Symfony/Component/Config/Definition/BaseNode.php:266
/home/kevin/www/diva/vendor/symfony/symfony/src/Symfony/Component/Config/Definition/ArrayNode.php:270
/home/kevin/www/diva/vendor/symfony/symfony/src/Symfony/Component/Config/Definition/BaseNode.php:266
/home/kevin/www/diva/vendor/symfony/symfony/src/Symfony/Component/Config/Definition/Processor.php:35
/home/kevin/www/diva/vendor/symfony/symfony/src/Symfony/Component/Config/Definition/Processor.php:52
/home/kevin/www/diva/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/DependencyInjection/Extension.php:103
/home/kevin/www/diva/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php:62
/home/kevin/www/diva/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Compiler/MergeExtensionConfigurationPass.php:42
/home/kevin/www/diva/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/DependencyInjection/MergeExtensionConfigurationPass.php:39
/home/kevin/www/diva/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Compiler/Compiler.php:119
/home/kevin/www/diva/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/ContainerBuilder.php:453
/home/kevin/www/diva/app/bootstrap.php.cache:945
/home/kevin/www/diva/app/bootstrap.php.cache:854
/home/kevin/www/diva/app/bootstrap.php.cache:566
/home/kevin/www/diva/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/Test/WebTestCase.php:43
/home/kevin/www/diva/src/Acme/DemoBundle/Tests/Controller/DemoControllerTest.php:11
FAILURES!
Tests: 1, Assertions: 0, Errors: 1.
有想法该怎么解决这个吗？